184 34. DLECIINUM, § EUBLECIINUT.r. 



racMs and both surfaces naked ; veins inconspicuous ; sori in a short line close 

 to the midrib, often on one side only.— Hk. Sp. 2. p. 45. B. polypodioides, Kze. 

 £ Mat. non Baddi. 



Hab. Tropical America from Panama and N. Granada to Brazil and Peru. — A more 

 slender and narrower plant than B. unilaterale, with even the lowest pinnae connected and 

 much less copious sori. 



8. B. unilaterale, Willd. ; caud. elongated, densely clothed at the crown with 

 linear pale-brown scales ; st. slender, erect, 1-4 in. 1., slightly scaly below ; fr. lan- 

 ceolate, 6-12 in. ]., 1^-2 in. br. ; pinnce numerous, spreading horizontally, linear, 

 |-1 in. 1., the central ones j-§ in. br., the point usually mucronate, the edge 

 entire or nearly so, tlie lower part dilated to a broad base, the lower ones 

 broader, blunter, and short ; texture herbaceous, both surfaces and rachis naked 

 or slightly hairy ; veins inconspicuous ; sori in a line close to the midrib. — 

 B. polypodioides, Raddi. Hk. Sp. 3. p. 45. 



Hab. Tropical America from Mexico arwi the W. Indies southward to Peru and 

 S. Bi-azil. — This comes very near the small forms of B, occidentale, and we cannot, from 

 the description alone, distinguish B. triangulare, Link. 



4. B. cartilagineum, Swartz ; caud. oblique, densely clothed at the crown with 

 blackish librillose scales ; st. strong, erect, 4-6 in. 1., scaly and muricated in the 

 lower part ; fr. ovate-oblong, 1-2 ft. 1., 6-9 in. br. ; pinncB numerous, erecto- 

 patent, linear, 4-6 in. 1., j-^ in. br., narrowed gradually towards the point, the 

 margin finely toothed, dilated and connected at the base, the lower ones not con- 

 spicuously smaller than tlie others ; textiire coriaceous ; rachis and both surfaces 

 naked ; veins fine ; sori in a broad line close to the midrib. — Hk. Sp. 2. p. 43. 



Hab. Temperate Australia. Very like B. nitidum, from which it is best distinguished 

 by its muricated stipe. 



6. B. nitidum, Presl ; st. stout, erect, naked, 3-4 in. 1. ; fr. oblong-lanceolate, 

 1 ft. or more 1., 4-6 in. br. ; pinnce numerous, erecto-patent, subfalcate, linear, 

 3-4 in. 1., |:-§ in. br., narrowed gradually towards the point, dilated and con- 

 nected at the base, the edge undulato-dentate, the lower ones linear acute and 

 not much smaller than the rest ; texture coriaceous, both surfaces and rachis 

 naked ; veins fine ; sori in a continuous line close to the midrib ; invol. con- 

 spicuous. — Hk. Sp. 3. p. 44. t. 55. 



Hab. S. Brazil, Philippines, Marianne Islands, Isle of Gaudalcomar and Mishmee, 

 N. Hindostan. — Near B. brasiliense, but a smaller plant, terminating abruptly below, 

 and the involucre more conspicuous. In some of the specimens {var. contractum, Hook.) 

 the pinnae are contracted and the edge is much undulated. 



6. B. brasiliense, Desv. ; caud. erect, stout, subarborescent, 1 ft. or more 1., 

 densely clothed at the crown with dark-brown fibrillose scales ; st. short, stout, 

 'lensely scaly ; fr. oblong-lanceolate, 2-3 ft. L, 1 ft. or more br., narrowing 

 downwards very gradually ; pinnce close, erecto-patent, linear, 4-6 in. 1., J in. br., 

 nan-owed gradually towards the point, very finely toothed, connected at the 

 base, the lower ones short and blunt ; texture coriaceous, both surfaces naked ; 

 veins fine ; rachis naked ; sori in a continuous line close to the midrib ; invol. 

 narrow.— 7/X-. Sp. 3. p. 43. t. 157. B. corcovadense, Raddi. B. validum. 

 Fee. 



Hab. Brazil and Peru. 



